Added function to retrieve the amount of data received from an BLECharacteristic (#5339)

Author: xBiohazardx

Diff for: libraries/BLE/src/BLECharacteristic.cpp

@@ -187,6 +187,13 @@ uint8_t* BLECharacteristic::getData() {
 	return m_value.getData();
 } // getData
 
+/**
+ * @brief Retrieve the current length of the data of the characteristic.
+ * @return Amount of databytes of the characteristic.
+ */
+uint8_t BLECharacteristic::getLength() {
+	return m_value.getLength();
+} // getLength
 
 /**
  * Handle a GATT server event.

Diff for: libraries/BLE/src/BLECharacteristic.h

@@ -62,6 +62,7 @@ class BLECharacteristic {
 	BLEUUID        getUUID();
 	std::string    getValue();
 	uint8_t*       getData();
+	uint8_t        getLength();
 
 	void indicate();
 	void notify(bool is_notification = true);